Best wordplay jokes, in the spirit of "what were you eating under there?"

"Under where?"
"You were eating UNDERWEAR???"

I love that one, but it's so common that it's hard to fool anybody. Does /r/jokes have any others in the same vein that aren't as well known?

You might also enjoy

Many of the jokes are contributions from our users. If you find anything offensive and against our policy please report it here with a link to the page. We will do everything to make this an enjoyable platform for everyone.